复合材料长桁压缩性能数值分析及试验验证

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (7): 34-38.

复合材料长桁压缩性能数值分析及试验验证

叶梯, 岳源

中国民用航空飞行学院航空工程学院,广汉618307

收稿日期:2018-10-11 出版日期:2019-07-28 发布日期:2019-07-28
作者简介:叶梯(1993-),男,硕士,助教,研究方向为飞行器结构设计,kukolsss@163.com。
基金资助:
民航局教育人才类项目(14002600100017J173)

NUMERICAL STUDY AND EXPERIMENT OF COMPOSITE STRINGER ON COMPRESSIVE PROPERTY

YE Ti, YUE Yuan

Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan 618307, China

Received:2018-10-11 Online:2019-07-28 Published:2019-07-28

摘要/Abstract

摘要： 基于渐进损伤方法,以三维HASHIN准则作为复合材料失效的判据,采用非线性刚度退化方法研究了复合材料长桁的压缩性能。通过编写用户自定义材料子程序(UMAT)的方式,将上述准则结合,在ABAQUS中实现。建立不同尺寸、不同铺层长桁三维有限元模型,分析了它们的压缩性能及破坏过程,同时对有限元模型进行了试验验证。长桁构型1分析结果为在247 kN破坏,试验结果为在257 kN,试验结果与数值分析结果符合良好,验证了分析模型的有效性。

关键词: 数值分析, 试验, 渐进损伤, 压缩性能, 长桁

Abstract: Based on the progressive damage analysis, compressive property of composite stringer was studied with the 3D HASHIN criterion and nonlinear stiffness degradation method. By coding the user-defined material subroutine (UMAT), the application of failure criterion and stiffness degradation method were implemented in ABAQUS. With different sizes and lay-ups into consideration, three dimensional finite element models were built to analyze the compressive property and the failure process, and experimental verification was made simultaneously. For configuration 1,the result of finite element analysis was 247 kN, which agreed well with the experimental result 257 kN, verifying the reliability of the model.

Key words: numerical study, experiment, progressive damage, compressive property, stringer

中图分类号:

TB332

叶梯, 岳源. 复合材料长桁压缩性能数值分析及试验验证[J]. 玻璃钢/复合材料, 2019, 0(7): 34-38.

YE Ti, YUE Yuan. NUMERICAL STUDY AND EXPERIMENT OF COMPOSITE STRINGER ON COMPRESSIVE PROPERTY[J]. Fiber Reinforced Plastics/Composites, 2019, 0(7): 34-38.

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